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  <title>Truncates large object</title>

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</div><hr /><div id="oci-lob.truncate" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">OCI-Lob::truncate</h1>
  <p class="verinfo">(PHP 5, PECL OCI8 &gt;= 1.1.0)</p><p class="refpurpose"><span class="refname">OCI-Lob::truncate</span> &mdash; <span class="dc-title">Truncates large object</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-oci-lob.truncate-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">bool</span> <span class="methodname"><strong>OCI-Lob::truncate</strong></span>
    ([ <span class="methodparam"><span class="type">int</span> <code class="parameter">$length</code><span class="initializer"> = 0</span></span>
  ] )</div>

  <p class="para rdfs-comment">
   Truncates the LOB.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-oci-lob.truncate-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">length</code></em></dt>

     <dd>

      <p class="para">
       If provided, this method will truncate the LOB to
       <em><code class="parameter">length</code></em> bytes. Otherwise, it will completely
       purge the LOB.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-oci-lob.truncate-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-oci-lob.truncate-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><a href="oci-lob.erase.html" class="xref">OCI-Lob::erase</a></li>
   </ul>
  </p>
 </div>


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